Why does Miranda look hard at Andrea's shoes?

Why does Miranda look hard at Andrea's shoes?
A.Because the shoes come from a top fashion brand.
B.Because it's a pair of shoes Nigel offers Andrea.
C.Because Andrea wears a pair of unconventional high heels.
D.Because Miranda cannot put up with her assistant being out of date.
正确答案：Because Miranda cannot put up with her assistant being out of date.